{"product_id":"sikaflex-1a-10-oz-polyurethane-joint-sealant-durable-elastomeric","title":"Sikaflex 1a 10 oz Polyurethane Joint Sealant - Durable Elastomeric","description":"\u003cp\u003eIn this review of Sikaflex 1a 10 oz, the bottom line is clear: this is a professional-grade, one-component polyurethane sealant best suited to contractors and experienced DIYers who need a durable, flexible joint sealant for concrete, masonry and common building details. The biggest reason to buy is its combination of excellent adhesion without a primer and the ability to cure in green or damp concrete, which removes a common jobsite constraint and speeds work on exterior and interior joints.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-component formula:\u003c\/strong\u003e Ready to use from the cartridge with moisture-cured chemistry that simplifies application compared with multi-part systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent adhesion:\u003c\/strong\u003e Bonds to most construction materials without a primer, reducing prep time for many joint types.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather and age resistant:\u003c\/strong\u003e Formulated to resist aging and weathering so exterior joints maintain flexibility and seal over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement capability:\u003c\/strong\u003e Cures to a durable, flexible sealant with approximately +\/- 35% movement capacity for joints that expand and contract.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-sag consistency:\u003c\/strong\u003e Designed for vertical and horizontal joints where sealant depth does not exceed 1\/2 in, making it suitable for fillets and small joints.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes gloves:\u003c\/strong\u003e Packaged with AWF PRO gloves in this pack of 12, helping with cleaner application and handling on site.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eSikaflex 1a is aimed at professionals and advanced DIYers working on building envelopes, window and door frames, reglets, flashing details, roofing interfaces and small concrete joints. Its ability to cure in damp conditions and bond without a primer makes it particularly useful for jobs where weather or substrate moisture would otherwise delay work.\u003c\/p\u003e\n\u003cp\u003eHomeowners with only occasional caulking needs or those who require very deep joint fills beyond 1\/2 in should look at different formulations or multi-component systems designed for very large movement or deep structural joints.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStrong adhesion to a wide range of construction materials without primer.\u003c\/li\u003e\n\u003cli\u003eCan be applied to green or damp concrete, reducing downtime on new pours.\u003c\/li\u003e\n\u003cli\u003eDurable, flexible cure with +\/- 35% movement to handle thermal shifts.\u003c\/li\u003e\n\u003cli\u003eNon-sag formulation suitable for both vertical and horizontal small joints.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum recommended sealant depth is 1\/2 in, so it is not intended for very deep joints.\u003c\/li\u003e\n\u003cli\u003eAs a professional-grade product, application technique matters and novices may need practice to get smooth tooling and adhesion.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003eSikaflex 1a 10 oz, one-component polyurethane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMovement capability\u003c\/td\u003e\n\u003ctd\u003eApproximately +\/- 35%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication depth limit\u003c\/td\u003e\n\u003ctd\u003eMaximum depth 1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCuring\u003c\/td\u003e\n\u003ctd\u003eMoisture-cured, elastomeric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandards\u003c\/td\u003e\n\u003ctd\u003eMeets Federal TT-S-00230C Type II Class A; ASTM C920 Type S Grade NS Class 35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuitable substrates\u003c\/td\u003e\n\u003ctd\u003eConcrete, masonry, metal, common construction materials without primer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003e10 oz cartridges, pack of 12 including AWF PRO gloves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eSikaflex 1a is a reliable, professional-grade sealant for small joints and common construction details where a durable, flexible, non-sag polyurethane is required. Its primerless adhesion and ability to cure in damp or green concrete give it strong on-site value; contractors and skilled DIYers will find it good value for exterior and interior sealing tasks within the specified depth limits.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan Sikaflex 1a be used on damp concrete?\u003c\/strong\u003e\u003cbr\u003eYes. The product is moisture-cured and can be used in green and damp concrete applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it require a primer on common substrates?\u003c\/strong\u003e\u003cbr\u003eNo. Sikaflex 1a has excellent adhesion and bonds to most construction materials without a primer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum joint depth?\u003c\/strong\u003e\u003cbr\u003eThe sealant is designed for joints where the maximum depth will not exceed 1\/2 in; deeper joints need alternative solutions.\u003c\/p\u003e","brand":"AWF PRO","offers":[{"title":"Default Title","offer_id":48627783598299,"sku":"B0F1GZQ7QK","price":93.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81PPxS7QNzL._SL1500.jpg?v=1778451926","url":"https:\/\/gearmusthave.com\/products\/sikaflex-1a-10-oz-polyurethane-joint-sealant-durable-elastomeric","provider":"GearMustHave","version":"1.0","type":"link"}